A sure-fire first-round pick, DeCastro left Stanford with one year of eligibility remaining - he received his degree in four years and redshirted in 2008. He is widely considered the best interior offensive lineman in the draft, drawing raves for his technical precision at the guard position. A three-year starter, DeCastro was a Pac-10 honorable mention as a freshman before garnering first-team conference honors in 2010 and 2011. He also was an All-American and Outland Trophy finalist this season as the Cardinal continued their rise to national prominence behind quarterback and Heisman Trophy finalist Andrew Luck. One of the reasons many expect DeCastro to make an instant impact as a pro is having played in Stanford's pro-style offense, which should lead to a seamless transition at the next level. Additionally, DeCastro appears to be a pro's pro - there is no wasted movement, he doesn't take a play off and is fundamentally sound. He is equally adept at run and pass blocking, and always takes the proper angles on pulling and trapping - the two essential needs for a guard to run block. DeCastro knows how to get to the second level on blocks and also has excellent footwork. If there is one area he could stand to improve, it would be sustaining his second-level blocks as he gets downfield. At the scouting combine, DeCastro had the quickest 3-cone time of all offensive linemen at 7.30 seconds, was second with 34 reps in the 225-pound bench press and placed third in the 20-yard shuttle (4.56).